I think the reason you are not getting any answers is because most of us have not had any experience with those fish. Sorry. Sandy

The one fish per gallon is NOT used any more. As many mentioned each species has needs (territorial, swimming such as danios so on). (re ten for goldfish - Any good goldfish forum will inform one to have a least 20 gallons for each smaller gold fish due to water chemistry needs not just size.) Most fish as well, need both planted areas (some sleep amongst plants at night as well as utilize them during the day) and open swimming space. Like us, they like to move about and need stimulation for good health (read Desmond Morris - Zoologists, (or any of his great books) The Naked Ape on older types of zoos and abhorrent animal behavior due to stress of horrific conditions). Cories do love to swim and in the wild are in huge schools in river systems (hundreds even thousands) like above post mentioned they swim all over if given the space. The larger the tank size the better. That said, some I've had that would do ok with smaller size and schooling as well - but due to size 5-7 at most depending on fish (or plant nice and have a great betta set up, java moss on wood, java ferns on rocks - happy betta!). All need plants (Anubias is great as one doesn't need so much sand, a bit for bio culturing) Some can be on rocks, woods and other floating for cover. Most fish (unless specifically high light fish) like shade from plants due to their natural biotype. Remember, hardscape (filters, heater so on and plants rocks wood) take up space and reduce actual water amount. ............................ Doctor Foster and Smith has a pet education site and list minimum tank size for each species. http://www.peteducation.com/category.cfm?c=16+1911 Fish by type at Foster and Smith: (note the minimum of 30 gallon for goldfish and cory) http://www.liveaquaria.com/product/aquarium-fish-supplies.cfm?c=830 ........................................... White cloud mountain minnow. (cooler water fish from Chinese rivers) Very pretty, now (see Dr. Foster and Smith) they have longer flowing fins as well as original. Plants. (this site mentions danios ok for ten - I would not have a school under 20, long at that as they love to zoom full length like speeding bullets) White cloud: New type variation a real beauty: http://www.liveaquaria.com/product/prod_display.cfm?c=830+881+952&pcatid=952 Longer finned variant: http://www.liveaquaria.com/product/prod_display.cfm?c=830+881+950&pcatid=950 http://images.search.yahoo.com/search/images?_adv_prop=image&fr=ytff1-yff3k&va=white+cloud+mountain+minnow&sz=all Priscella tetra... unlike some barbs and tetras, very peaceful... needs a school and plants. Two colors, normal and golden (bred). http://www.liveaquaria.com/product/prod_display.cfm?c=830+890+2747&pcatid=2747 http://www.liveaquaria.com/product/prod_display.cfm?c=830+1535+2748&pcatid=2748 Black Neon Tetra (not a true tetra but beautiful fish) Peaceful, schooling needs plants. http://www.liveaquaria.com/product/prod_display.cfm?c=830+890+1582&pcatid=1582 Other tetras mentioned for ten: http://www.liveaquaria.com/product/aquarium-fish-supplies.cfm?c=830+890 (others on site above as well) Rummynose Glowlight Silver tip Greenfire Diamond Head (pretty) Neons Rasbora (some need more room see link for ten gallon) http://www.liveaquaria.com/product/aquarium-fish-supplies.cfm?c=830+887 Also, how about a moss planted shrimp species tank? ............................................. (suenglee, you need to add to both schools - both of your fish types are schooling fish. Schooling fish evolved to act as one unit and will become stressed and more prone to disease if not kept in schools. (protective/security) So maybe one more cory (I strongly myself over size tanks, under stock and use two filters each tank) so don't add too many for a ten. And at least 3 more tetras. That will be plenty for a ten - again it is water chemistry (bio load) and a ten is not much water all things considered. And all fish need space to swim. Like us in small apartment one goes nuts! I would not add any other species due to tank size and need for schools. (you can mix albinos with normal colors of same fish type though)

I have a 29 gallon tank with the following fish 1. Red tail sharks x2 for beauty 2. Zebras x5 to keep the tank moving 3. Neon's x4 beautiful and hang towards the bottom of the tank in a school 4. Glow lights x5 beautiful and hang towards the bottom of the tank in a school 5. Catfish x3 constant cleaners of gravel and such 6. Plecostomu x1 Algae eater 7. White cloud x1 Hangs at the top, fish store goofed and gave me one instead of neon 8. Beta fish x1 for beauty and keeps the tank interesting. When I first put the beta in the tank he went after one of the neon fish and I figured this wasn't going to work so I started filling up my 2.5 gallon fish bowl when Mr. shark appeared from behind a rock and chased the beta twice around the tank. That was it for the beta he now leaves everyone alone and spends his time looking at the mirror reflection of himself. Mr. shark still chases him every now and then but only chases and does not nip or bite as the beta's fins are flawless and beautiful. The tank is very well balanced and everyone gets along and the funny thing is the shark never bothers any of the other fish just the beta. I don't think fish are smart enough to protect or play king of the tank but that's just what the shark appears to have done.

Wait, I am not getting Emperor Cichlid, so dont worry about them.